2. Installing DPDK from the Ports Collection
The easiest way to get up and running with the DPDK on FreeBSD is to install it using the FreeBSD pkg utility or from the ports collection. Details of installing applications from packages or the ports collection are documented in the FreeBSD Handbook, chapter Installing Applications: Packages and Ports.
Note
Please ensure that the latest patches are applied to third party libraries and software to avoid any known vulnerabilities.
2.1. Installing the DPDK Package for FreeBSD
DPDK can be installed on FreeBSD using the command:
pkg install dpdk
After the installation of the DPDK package, instructions will be printed on
how to install the kernel modules required to use the DPDK. A more
complete version of these instructions can be found in the sections
Loading the DPDK contigmem Module and Loading the DPDK nic_uio Module. Normally, lines like
those below would be added to the file /boot/loader.conf.
# Reserve 2 x 1G blocks of contiguous memory using contigmem driver:
hw.contigmem.num_buffers=2
hw.contigmem.buffer_size=1073741824
contigmem_load="YES"
# Identify NIC devices for DPDK apps to use and load nic_uio driver:
hw.nic_uio.bdfs="2:0:0,2:0:1"
nic_uio_load="YES"
2.2. Installing the DPDK FreeBSD Port
If so desired, the user can install DPDK using the ports collection rather than from
a pre-compiled binary package.
On a system with the ports collection installed in /usr/ports, the DPDK
can be installed using the commands:
cd /usr/ports/net/dpdk
make install
2.3. Compiling and Running the Example Applications
When the DPDK has been installed from the ports collection it installs
its example applications in /usr/local/share/dpdk/examples.
These examples can be compiled and run as described in Compiling and Running Sample Applications.
Note
DPDK example applications must be complied using gmake rather than BSD make. To detect the installed DPDK libraries, pkg-config should also be installed on the system.
Note
To install a copy of the DPDK compiled using gcc, please download the official DPDK package from http://core.dpdk.org/download/ and install manually using the instructions given in the next chapter, Compiling the DPDK Target from Source
An example application can therefore be copied to a user’s home directory and compiled and run as below, where we have 2 memory blocks of size 1G reserved via the contigmem module, and 4 NIC ports bound to the nic_uio module:
cp -r /usr/local/share/dpdk/examples/helloworld .
cd helloworld/
gmake
cc -O3 -I/usr/local/include -include rte_config.h -march=corei7 -D__BSD_VISIBLE main.c -o build/helloworld-shared -L/usr/local/lib -lrte_bpf -lrte_flow_classify -lrte_pipeline -lrte_table -lrte_port -lrte_fib -lrte_ipsec -lrte_stack -lrte_security -lrte_sched -lrte_reorder -lrte_rib -lrte_rcu -lrte_rawdev -lrte_pdump -lrte_member -lrte_lpm -lrte_latencystats -lrte_jobstats -lrte_ip_frag -lrte_gso -lrte_gro -lrte_eventdev -lrte_efd -lrte_distributor -lrte_cryptodev -lrte_compressdev -lrte_cfgfile -lrte_bitratestats -lrte_bbdev -lrte_acl -lrte_timer -lrte_hash -lrte_metrics -lrte_cmdline -lrte_pci -lrte_ethdev -lrte_meter -lrte_net -lrte_mbuf -lrte_mempool -lrte_ring -lrte_eal -lrte_kvargs
ln -sf helloworld-shared build/helloworld
sudo ./build/helloworld -l 0-3
EAL: Sysctl reports 8 cpus
EAL: Detected 8 lcore(s)
EAL: Detected 1 NUMA nodes
EAL: Multi-process socket /var/run/dpdk/rte/mp_socket
EAL: Selected IOVA mode 'PA'
EAL: Contigmem driver has 2 buffers, each of size 1GB
EAL: Mapped memory segment 0 @ 0x1040000000: physaddr:0x180000000, len 1073741824
EAL: Mapped memory segment 1 @ 0x1080000000: physaddr:0x1c0000000, len 1073741824
EAL: PCI device 0000:00:19.0 on NUMA socket 0
EAL: probe driver: 8086:153b net_e1000_em
EAL: 0000:00:19.0 not managed by UIO driver, skipping
EAL: PCI device 0000:01:00.0 on NUMA socket 0
EAL: probe driver: 8086:1572 net_i40e
EAL: PCI device 0000:01:00.1 on NUMA socket 0
EAL: probe driver: 8086:1572 net_i40e
EAL: PCI device 0000:01:00.2 on NUMA socket 0
EAL: probe driver: 8086:1572 net_i40e
EAL: PCI device 0000:01:00.3 on NUMA socket 0
EAL: probe driver: 8086:1572 net_i40e
hello from core 1
hello from core 2
hello from core 3
hello from core 0
Note
To run a DPDK process as a non-root user, adjust the permissions on
the /dev/contigmem and /dev/uio device nodes as described in section
Running DPDK Applications Without Root Privileges
Note
For an explanation of the command-line parameters that can be passed to an DPDK application, see section Running a Sample Application.